The Barracks Upgrade lines splits ... ... ...
You know all what you can unlock in the barracks and what you get , it never changes and no choice.
My suggestion is that When you upgrade your barracks to specific levels , you can unlock 1 of either 2 troops. So barracks will become Barracks A and Barracks B. Upgrade cost will be same for the split , but menu and barracks graphics will change !!!
Barracks 7 = Wizards
Barracks 8 = Healer OR New troop 1 in barracks 8B
Barracks 9 = Dragon OR New troop 2 in barracks 9B ( need 8B to upgrade )
Barracks 10 = P.E.K.K.A and previous line up of troops according to selections ( 10A or 10B )
This will increase diversity in the game & add space for new troops whose ideas are trending on the Forums !
Same can be applied for the dark Barracks.
But you get an extra barracks at TH6 so that even maxed player can get a chance to unlock new troops . SO to balance it , some training times can be increased
I hope you like it !! Plz suggest what troops can be unlocked !!